Vaporizing device



Sept. 4, 1945. c. F. J. DUPUY 2,383,960

VAPORIZI'NG DEVICE Filed Feb. '28, 1944 iziz/erzzx Patented Sept. 4, 1945 unnan PATENT orricr. 7

chance m y, Mahwal'l, J.,-assignor to o-ceaar-corpn. ohicago. 111., a corporation of Illinois Application reiiruary 28, 1944, Serial No. 524.164

' 5 Claims. (01. toe- 20) v This invention relates to a vaporizing device, and more particularly to a device for vaporizing .Iiquidsm which the quantity of liquid vaporized may be readily controlled. 7

object of the invention is to provide a and efiective device for vaporizing liquids. The devicefmay be used in deodorizing air or odorizing air. in disinfecting air, and in inhibiting or destroying moths or other insects. Another object is to provide in a vaporizingdevice., simple means for controlling the quantity or liquid-vaporized. Still another object is to provide a device which is easy to assemble and maybe readily taken apart or disassembled. A furtherobject is toprovide a vaporizing device which may'include apad saturated with liquid andinwhich the pad is freely accessible to "the air while at the same time liquid may not overflow or escape from the pad and :from the container.

.,A still further object is to provide a vaporizing device in whichthe rate of vaporization can-be varied by adjusting the access to the air,

Qther features and advantages are set forth in the following specification and drawing, in

simple:

.a--transverse sectional view taken along the line vice in which a liquid container may be equipped with one or more capillary. members extending into the. liquid in a container and communicating with 'a vaporizing pad. The exposure of the pad Iandaccess of the air thereto determines the "quantity of liquid'w-hioh is vaporized and imparted to the air; and this exposure is controlled by a closure memberin the device. r 1

The vaporizing device of Figs. '1 to 4; includes a liquid container In of any suitable or conventional structure and having a large opening H in the upper portion thereof. Liquid l2 maybe placed in the container and-may be at any suitable level, such, for example, as the-level i3 seenin Fig. 2. The wicks [4 are received within the liquid :in the "container and extend upwardly into the opening or mouth H of the container.

Aplateiiis received within the opening H in the container l0 and provides a base'for supporting' a vaporizing pad [6 which is connected or communicates with the wicks M. The pad l6 and "suitable type of aperture.

the wicks M may be of conventional construction of the type used in vaporizing devices.

The container may be equipped with a depressed annular rim ll extending about the opening 1 I, The plate l5 in turn is provided with a laterallyextending flange l8 which is received on the rim ll to support the plate in the container. The rim ll, may be equipped with a plurality of notches 19 which are adapted to receive corresponding lugs 20 on the plate l5 so as to prevent rotation of the plate 15 with respect to the container' while permitting the plate I5 to be readily removed from the container by lifting it upwar'dly,

The plate I5 is. preferably provided with a rec e'ss'ed'portion 2| having a central aperture 22 therein. The recessed portion of the plate is preferably of a depth substantially the same as the thickness of the pad 16 so that the padl6 does not extend above the upper surface ofv the nange [8 of the plate. The central aperture 22 therein. As illustrated in Fig. 2, the flange may consist of a plurality of lugs 25 substantially uniforinly spaced apart about the circumference of the outer periphery of the plate. A closure 26 extends over the plate I5 and is provided with a depending peripheral flange 21 which is received inadjacent concentric relation with respect to the flange 23' of the plate. The depending flange 21 may consist of a "plurality of lugs 28 substantiallyuhiiforinly spaced apart about the circumference of the closure by the openings or apertures 29, or the flange may be equipped with any As illustrated, the depending flange 21 is received about the outwardly-ext'ending flange 23 and is supported upon the upper surface of the container. The closure 26 which is freely removable from the container is also rotatable thereon so that the openings 29 may be brought into and out of register with theopenings 24 in the flange 23.

.In operation, the container I0 is filled with the liquid to be vaporized to a suitable level, such as-the level 13. The removable plate 15 is then placed in the opening H in the container, with the lateral flange I8 supported upon the depressed rim H of the container and the projections 20 being received within the notches l9'in the rim H. The plate l5 thus is locked against rotation with-respect to the container by reason pf the closure is not in position, the entire uppgrsurface ofthe pad is exposed to the air and the liquid in the pad readily vaporizesinto the air.

When it is desired to control the quantity'of vapor imparted into the air, the closure is placed into position over the plate I5 and the openings or apertures 29 may be in register with the apertures 24'. In this position, a circulation of air is permitted across the upper surface of the pad l6 and liquid is thus vaporized from the pad. By rotating the closure 26, thesize of the registering openings may be adjusted and, in'fact, if desired, the openings may be entirely out of register so that the air between the pad and the closure cannot escape. By thus controlling the flow of air above the pad, the'quantity of vapor imparted to the air may also be controlled.

Figure fi illustrates an alternative construction including a liquid container 3| of a convenient size and forrned of any material which will hold a liquid. At its upper end the container is formed with an inwardly extending flange 32 which is preferably depressed below the level of the container top. An upstanding peripheral flange 33 is formed. on the upper-part of the container and is provided with a plurality of circumferentially spaced apertures 34 therein.

The vaporizing unit in this construction is formed of a porousmaterial such as ung lazed porcelain, porous wood orthe like. The unit as shown includes a pad portion 35 which .is circular in outline to rest on the depressed flange 32 with its upper surface substantially flush with the top of the container.. A capillary portion 36 integral with the pad portion 35 depends therefrom into the liquid in the container so that liquid will be drawn up to the capillary action. r

The container is closed by, a cover or closure pad portion by ,3"l having adownwardly extending peripheral flange 38 formed with a series of spaced apertures of substantially the same width as the apertures 34. The cover fits loosely over the top of the container with its flange 38 overlying-the flange 33 so, that the cover is rotatably supported on the container.

In use liquid in the container flows upwardly through the capillary portion 36 0f the vaporiz-' ing unit into the pad 35 and vaporizes therefrom. The closure 'may be removed for exposure of the entire upper surface of the pad to the air for'rapid vaporization or with the cover in place it maybe turned to make more or lessof the openings 34 efiective so that the rate of vaporization can be controlledzif 121 While two embodiments of the invention "have been shown and described in detail herein, it will be understood that these are illustrative only and are not intended as definition of the scope of the invention, reference being had for this purpose to the appended claims.

What is claimed is: 1. A vaporizing device comprising a liquid container having an open top, an upstanding peripheral flange at the top of the container formed with a series of spaced apertures, a porous pad supported adjacent the top of the container interior to the flange with its upper surface below the bottoms of the apertures, a capillary member depending from the pad into the container, a cover-.rotatably supported on the container, and a depending peripheral flange on the cover overlying the first named circular flange and formed with a series of spaced apertures variably to register with the first named apertures as the cover is turned.

2. A vaporizing device comprising a liquid container 'havingan opening in the upper portion thereof, a base extending about said opening and being recessed below the upper surface of v the container, a porous pad fitting within the recess on the base of a thickness such that its upper surface is substantially flush with the uppersurface of the recess, a capillary member depending from the pad into the container, an

upwardly-extending eripheral flange onsaid base, said flange beingprovi'ded with a plurality of 1 circumferentially-spaced apertures, and, a

closure removablyreceived on said base and covering the same, said closure being equipped with a depending peripheral flange disposed in adjacent concentric relation with the flange of the base, said depending flange being equipped with "a plurality of circum'ferentially-spaced apertures therein, the closure being rotatable on 'the'fcontainer to bring said apertures into and out of registerwith each other.

, 3'.- A vaporizing device comprising a liquid'con- 'tainer'having an opening in the upper endthereof, a centrally-apertured plate removably received withinsaid opening and closing the same, said plate being. provided with a recessed portion disposed below theupper surface of the container and adapted to receive avaporizin'g pad thereon, an upwardly-extending" peripheral flange on said plate extending upwardly above the upper surface of the container, said flange being provided with a plurality of circumferentially-spaced apertures therein, and a closure reniov'ably supported bythe container above said plate and equipped with a depending'peripheral flange disposed in adjacent concentricrelation with res'pect'to the flange on said plate, said depending flangebeing equipped 'with a plurality of circumferentially-spac'ed apertures therein,

thejclosu'rg-z being rotatable with respect to the the container, 'a' plate received on said rim and having its upper surface substantially flush with ,thefupp'er surface of the container, said plate being centrally apertured andadapted to receive a vaporizing pad thereon, the central aperture in the plate communicating with the interior of thelcontainer, said plate being received in'inter locking relation with said rim to prevent rotation ofthe" plate within the container while permitting the removal of the plate by vertical movement thereof," a recessed portion insaid plate aboutsaid central aperture therein forre- 'c'eiving-a 'vaporizing'pad below the upper surface' of thecontainer, a plurality of upwardlyextending peripheral flange segments on said plate extending upwardly above the upper surface of the container, said segments being ciroumferentially and substantially uniformly spaced apart by distances substantially equal to the width of the segments, and a closure removably supported on the container above said plate and equipped with a plurality of depending peripheral flange segments, said depending segments being substantially uniformly spaced apart by the same distance as the distance by which the upwardly-extending segments are spaced apart and being received in adjacent concentric relation with respect to said upwardly-extending segments, said closure being rotatable with respect to said container whereby the spaces between said segments may be brought into and out of register with each other.

5. A vaporizing device comprising a liquid container having an open top, an inwardly extending flange at the top of the container lying below the top of the container, a porous vaporizing unit including an upper pad portion adapted to overlie and be supported on the flange with its upper surface substantially flush with the top of the container and a depending capillary portion to extend into a body of liquid in the container, an upstanding peripheral flange on the top of the container formed with a series of spaced apertures, a closure rotatably supported on the top of the container, and a depending peripheral flange on the closure overlying the upstanding flange and formed with a series of apertures variably to register with the apertures in the upstanding flange as the closure is turned.

CHARLES F. J. DUPUY. 

